/Engine/Source/Developer/AnimationDataController/Public/AnimDataController.h
Removes an attribute, if found, with the provided information. Broadcasts a EAnimDataModelNotifyType::AttributeRemoved notify if successful.
Whether or not the attribute was successfully removed
virtual bool RemoveAttribute ( const [FAnimationAttributeIdentifier](API\Runtime\Engine\Animation\AnimData\FAnimationAttributeIdentifier) & AttributeIdentifier, bool bShouldTransact )